seen here by some democrats as a finger point at the obama administration. it was answered by california senator dianne feinstein who said in effect, wait a minute, there have been lots and lots and lots of terror plots since 9/11 thwarted by federal officials. this is not the rule, whatever happened at boston. point two, gun control suddenly will lurch to the forefront here in washington, pushing boston at least in this town off of front runner. the big vote on the post newtown gun control measure due, and this is a surprise, tomorrow. from the capital, i'm steve handelsman, nbc bay area news. >> we'll be watching that closely as well, thank you, steve. >>> today we learned more about the makeup of the bombs used in the attacks in botch. they're called pressurer cooker bombs. explosive material that's packed inside a pressure cooker and then set off. inside the bombs were nails, bb bullets, ball bearings and shards of metal that were spewed into the crowds when they exploded. this type of bomb is seen in afghanistan, india and pakistan. an al qaeda magazine